Genetic variability, heritability and genetic advance analysis for yield and yield contributing traits in induced mutant lines of Cowpea (Vigna unguiculata (L.) Walp.)

Fifty-two cowpea mutant genotypes were evaluated in randomized block design to assess the nature and magnitude of variability, heritability and genetic advance for nine quantitative traits. Analysis of variance unveiled that differences among the genotypes were significant for all the traits considered indicating the presence of a substantial amount of genetic variation among the genotypes studied. High estimates of GCV and PCV were recorded for number of cluster per plant, number of pods per plant and seed yield per plant. High heritability coupled with high genetic advance as per cent of mean was observed for number of cluster per plant and number of pods per plant suggesting predominance of additive gene effects and these characters could be improved through selection.